Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
335/35r17 vs 315/50r17 Tire Comparison Side By Side
  335/35-17 315/50-17 Difference
Diameter inches (mm) 26.23 (666.3) 29.4 (746.8) 3.17 (80.5) 12.1%
Width inches (mm) 13.19 (335) 12.4 (315) -0.79 (-20) -6%
Circum. inches (mm) 82.41 (2093.24) 92.37 (2346.14) 9.96 (252.9) 12.1%
Sidewall Height inches (mm) 4.62 (117.25) 6.2 (157.5) 1.58 (40.25) 34.3%
Revolutions per mile (km) 768.83 (477.73) 685.95 (426.23) -82.87 (-51.5) -10.8%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)22.42 mph (36.08 km/h)
25 mph (40.23 km/h)28.02 mph (45.09 km/h)
30 mph (48.28 km/h)33.62 mph (54.11 km/h)
35 mph (56.33 km/h)39.23 mph (63.13 km/h)
40 mph (64.37 km/h)44.83 mph (72.15 km/h)
45 mph (72.42 km/h)50.44 mph (81.17 km/h)
50 mph (80.47 km/h)56.04 mph (90.19 km/h)
55 mph (88.51 km/h)61.64 mph (99.21 km/h)
60 mph (96.56 km/h)67.25 mph (108.23 km/h)
65 mph (104.61 km/h)72.85 mph (117.25 km/h)
70 mph (112.65 km/h)78.46 mph (126.26 km/h)
75 mph (120.7 km/h)84.06 mph (135.28 km/h)
80 mph (128.75 km/h)89.67 mph (144.3 km/h)
85 mph (136.79 km/h)95.27 mph (153.32 km/h)
90 mph (144.84 km/h)100.87 mph (162.34 km/h)
95 mph (152.89 km/h)106.48 mph (171.36 km/h)
100 mph (160.93 km/h)112.08 mph (180.38 km/h)

Gear Ratio / RPMs for New Tire (@ 65 mph)
2.35 2.73 2.94 3.07 3.21 3.31 3.42 3.55 3.73 3.91 4.11 4.27 4.56 4.88 5.13 5.29 5.38 5.71 6.17 7.17
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